<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <!-- 面包屑项 -->
            <el-breadcrumb-item :to="{ path:'/home'}">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>

            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" prop="username">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>                       
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" 
                            :current-page="queryInfo.pagenum" :page-sizes="[1,2,5,10]" :page-size="queryInfo.pagesize" 
                            layout="total, sizes, prev, pager, next, jumper" :total="total">            
            </el-pagination>
        </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70%">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible=false">取消</el-button>
            <el-button @click="addUser" type="primary">确定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
        <div>
            <p>当前的用户:{{userInfo.username}}</p>
            <p>当前的角色:{{userInfo.role_name}}</p>
            <p>分配新角色:
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">                     
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
     </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        var checkEmail = (rule, value, cb) => {
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)) {
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }

        // 验证手机号的规则
        var checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

        if (regMobile.test(value)) {
            return cb()
        }

        cb(new Error('请输入合法的手机号'))
        }

        return {
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 2
            },
            userlist: [],
            total: 0,
            addDialogVisible: false,
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            addFormRules: {
                username: [
                    {required: true, message: '请输入用户名', trigger: 'blur'},
                    {min:3, max:10, message: '用户名的长度在3-10个字符之间', trigger: 'blur'}
                ],
                password: [
                    {required: true, message: '请输入密码', trigger: 'blur'},
                    {min:6, max:15, message: '密码的长度在6-15个字符之间', trigger: 'blur'}
                ],
                email: [
                    {required: true, message: '请输入邮箱', trigger: 'blur'},
                    {validator: checkEmail, trigger: 'blur'}
                ],
                mobile: [
                    {required: true, message: '请输入用户名', trigger: 'blur'},
                    {validator: checkMobile, trigger: 'blur'}
                ],
            },
            editDialogVisible: false,
            editForm: {},
            editFormRules: {
                email: [
                    {required: true, message: '请输入邮箱', trigger: 'blur'},
                    {validator: checkEmail, trigger: 'blur'}
                ],
                mobile: [
                    {required: true, message: '请输入用户名', trigger: 'blur'},
                    {validator: checkMobile, trigger: 'blur'}
                ]
            },
            setRoleDialogVisible: false,
            userInfo: {},
            rolesList: [],
            selectedRoleId: ''
        }
    },
    created(){
            this.getUserList()
    },
    methods: {
        async getUserList(){
            const {data: res} = await this.$http.get('users', {params: this.queryInfo})
            if(res.meta.status !== 200) {
                return this.$message.error('获取用户列表失败!')
            }
            this.userlist = res.data.userlist
            this.total = res.data.total
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        async userStateChanged(userinfo){
            const{data: res} = await this.$http.put(
                `users/${userinfo.id}/state/${userinfo.mg_state}`
            )
            if(res.meta.status != 200) {
                userinfo.mg_state = !userinfo.msg_state
                return this.$message.error('更新用户状态失败!')
            }
            this.$message.success('更新用户状态成功!')
        },
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        addUser(){
            this.$refs.addFormRef.validate(async valid => {
                if(!valid) return 
                const {data: res} = await this.$http.post('users',this.addForm)
                if(res.meta.status !== 201) {
                    this.$message.error('添加用户失败!')
                }
                this.$message.success('添加用户成功!')
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        async showEditDialog(id){
            const {data: res} = await this.$http.get('users/'+id)
            if(res.meta.status !== 200){
                return this.$message.error('查询用户信息失败!')
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return 
                const {data: res} = await this.$http.put('users/'+this.editForm.id,
                {email: this.editForm.email,
                 mobile: this.editForm.mobile
                }        
            )
            if(res.meta.status !== 200){
                return this.$message.error('更新用户信息失败!')
            }
            this.editDialogVisible = false
            this.getUserList()
            this.$message.success('更新用户信息成功!')
        })
    },
    async removeUserById(id){
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?','提示',
        {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
        }).catch(err => err)
        if(confirmResult !== 'confirm') {
            return this.$message.info('已取消删除')
        }
        const{data:res} = await this.$http.delete('users/'+id)
        if(res.meta.status !== 200) {
            return this.$message.error('删除用户失败!')
        }
        this.$message.success('删除用户成功!')
        this.getUserList()
    },
    async setRole(userInfo){
        this.userInfo = userInfo
        const{data: res} = await this.$http.get('roles')
        if(res.meta.status !== 200) {
            return this.$message.error('获取角色列表失败!')
        }
        this.rolesList = res.data
        this.setRoleDialogVisible = true
    },
    async saveRoleInfo(){
        if(!this.selectedRoleId){
            return this.$message.error('请选择要分配的角色!')
        }
        const {data: res} = await this.$http.put( `users/${this.userInfo.id}/role`,{rid: this.selectedRoleId})
        if(res.meta.status !== 200){
            return this.$message.error('更新角色失败!')
        }
        this.$message.success('角色更新成功!')
        this.getUserList()
        this.setRoleDialogVisible = false
    },
    setRoleDialogClosed(){
        this.selectedRoleId = ''
        this.userInfo = {}
    }
}
}


</script>

<style lang="less" scoped>
</style>